1. Department of Neurology, Baystate Medical Center, University of Massachusetts Medical School-Baystate, Springfield, Massachusetts
2. Institute for Healthcare Delivery and Population Science and Department of Medicine, University of Massachusetts Medical School-Baystate, Springfield, Massachusetts
3. Department of Pediatrics, Division of Pulmonary, Asthma & Sleep Medicine, Stanford University School of Medicine, Palo Alto, California
4. University of Massachusetts Medical School-Baystate, Springfield, Massachusetts
5. Department of Medicine, Baystate Medical Center, University of Massachusetts Medical School-Baystate, Springfield, Massachusetts
6. Division of Sleep Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
7. Crescenz VA Medical Center, Philadelphia, Pennsylvania